Home / 1,020,428.20-1,529,330.10-620,644.60

Finding the Fourth Proportional to 1,020,428.20, 1,529,330.10 and 620,644.60

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Solution

The fourth proportional to 1,020,428.20, 1,529,330.10 and 620,644.60 is: 930,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,428.20 : 1,529,330.10 = 620,644.60 : x
  2. Step 2: Convert to fraction form
    1,020,428.20/1,529,330.10 = 620,644.60/x
  3. Step 3: Cross multiply
    1,020,428.20x = 1,529,330.10 × 620,644.60
  4. Step 4: Simplify right side
    1,020,428.20x = 949,170,468,182.46
  5. Step 5: Solve for x
    x = 949,170,468,182.46/1,020,428.20
  6. Step 6: Final answer
    x = 930,168.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.